Geoffrey Garrett, dean of the Wharton School at the University of Pennsylvania, delivers a speech during the opening ceremony of the Penn Wharton China Summit at the University of Pennsylvania in Philadelphia, Pennsylvania, the United States, April 14, 2018. The U.S. government should move beyond the traditional mindset of power politics to tackle challenges in China-U.S. relations, Fu Ying, a veteran Chinese diplomat, said here Saturday. (Xinhua/Wang Ying)